SKU: 5887062212

8HP DODGE RAM Thermostatic transmission cooler adapter

Sale price$1484.55 Regular price$1649.50
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

8HP DODGE RAM Thermostatic transmission cooler adapterHPR Tuning has partnered with the American company Improved Racing to create the first bolt on transmission fluid adapter with a thermostat for the 8HP transmissions found in 2012+ Ram 1500 trucks. This thermostat includes adapter sleeves for transmissions with 17mm and 18. 5mm unthreaded ports. The adapter's built in thermostat automatically bypasses the transmission cooler until the fluid reaches 160F. The thermostat reduces rough shifts caused by

HPR Tuning has partnered with the American company Improved Racing to create the first bolt-on transmission fluid adapter with a thermostat for the 8HP transmissions found in 2012+ Ram 1500 trucks. This thermostat includes adapter sleeves for transmissions with 17mm and 18.5mm unthreaded ports.

The adapter's built-in thermostat automatically bypasses the transmission cooler until the fluid reaches 160ºF. The thermostat reduces rough shifts caused by overcooled transmission fluid, reduces wear, and improves efficiency and horsepower. The transmission can now reach operating temps quickly with large aftermarket transmission coolers. This allows for high cooling capacity without sacrificing drivability.

The adapter features -8AN male connections for aftermarket AN lines.

Important Application Notes:

  • The adapter can only be used in conjunction with external transmission fluid coolers.
  • The adapter does not directly connect to the factory lines. Aftermarket AN lines must be used.
  • The adapter will only help resolve rough shifting issues if they are caused by overcooling of the transmission, usually due to the addition of a larger aftermarket transmission cooler.

Features and Benefits

  • Bolt-on fitment for 2012+ Ram 1500 truck 8HP series automatic transmissions with 17mm and 18.5mm unthreaded ports.
  • Built-in thermostat prevents temperatures from dropping below optimal levels, reducing wear, improving efficiency and horsepower, and helping to eliminate rough shifting.
  • -8AN male connections.
  • 6061-T6 billet aluminum construction with black MIL-A-8625 Type II anodized finish.
  • Thermostat portion is made in the USA by Improved Racing. Adapter portion is made by us at HPR Tuning.

Temperature Rating Specifications

Note: The 160ºF temperature rating is recommended for most applications.

Part Number Typ. Stabilization Temp Activation Temp Full Flow Temp
TCH-102-T2 165ºF (74ºC) 160ºF (71ºC) 181ºF (83ºC)


Includes

  • 1x TCH-102 transmission cooler adapter block with built-in thermostat.
  • 2x 17mm and 18.5mm adapter sleeves with O-ring seals.
  • 1x Zinc-plated steel mounting screw.
  • Installation instructions.

Applications

  • 2012+ Ram 1500 truck 8HP series automatic transmissions with 17mm and 18.5mm unthreaded ports.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5887062212

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DAVID L.
Houston, US
★★★★★ 5
Nice shoes!
Size: 11, Color: Black Full Grain
I bought them in black and I like them so much I will be buying the brown soon. They fit true to size and are comfortable and stylish. I like the clean simplicity. They're basically a dressy sneaker which is perfect for my job's 'dress code'. Yet they're stylish enough to be worn weekends or a night out. They seemed just a touch stiff out of the box but IMO that's completely normal and fine - after just a couple days of wearing them they are breaking in nicely. No complaints on that. They seem to be of very high quality and I'm very happy with them.
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Reviewed in the United States on February 8, 2026
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Bamaphan
Draper, US
★★★★★ 5
Good shoes!!!!!
Size: 10, Color: Tan Full Grain
They are comfortable, they fit, great style. I bought blue, brown and black shoes.
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Reviewed in the United States on August 18, 2025
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Shawn
Fort Morgan, US
★★★★★ 5
Great Product
Size: 13, Color: Black Full Grain
2nd Johnston & Murphy comfortable and stylish.
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Reviewed in the United States on December 26, 2025
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Margaret
Boise, US
★★★★★ 5
Great shoes for business casual, corporate travel
Size: 8.5, Color: White Full Grain
Fit true to size
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Reviewed in the United States on December 30, 2025
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Jocko
West Palm Beach, US
★★★★★ 5
Very Comfortable Shoes
Size: 11, Color: Black Full Grain
Were purchased as a gift and the wearer says they are the most comfortable shoes he has
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Reviewed in the United States on December 28, 2025

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